<html>
  <meta charset="utf-8">
  <head>
    <title>ZLM RTC demo</title>
    <script src="./ZLMRTCClient.js"></script>
  </head>
    
  <body>

    <div style="text-align: center;">
        <div>
          <video id='video' controls autoplay style="text-align:left;">
            Your browser is too old which doesn't support HTML5 video.
          </video>

          <video id='selfVideo' controls autoplay style="text-align:right;">
            Your browser is too old which doesn't support HTML5 video.
          </video>
        </div>

        <div style="float: left; width:30%;">
          <span>已存在的流列表，点击自动播放:</span>
          <ol id="olstreamlist">
            <li>初始演示</li>
            <li>每秒自动刷新</li>
          </ol>
        </div>

        <div style="float: right; width: 70%">

            <p>
                <label for="streamUrl">url:</label>
                <input type="text" style="co; width:70%" id='streamUrl' value="http://192.168.1.101/index/api/webrtc?app=live&stream=xiong&type=play">
            </p>

            <p>
              <label for="simulcast">simulcast:</label>
              <input type="checkbox" id='simulcast'>
            </p>
            <p>
              <label for="useCamera">useCamera:</label>
              <input type="checkbox" id='useCamera' checked="checked">
            </p>


            <p>
              <label for="audioEnable">audioEnable:</label>
              <input type="checkbox" id='audioEnable' checked="checked">
            </p>

            <p>
              <label for="videoEnable">videoEnable:</label>
              <input type="checkbox" id='videoEnable' checked="checked">
            </p>

            <p>
              <label for="method">method(play or push or echo):</label>
              <input type="radio" name="method" value="echo" >echo
              <input type="radio" name="method" value="push" >push
              <input type="radio" name="method" value="play" checked = true>play
            </p>
            <p>
              <label for="resolution">resolution:</label>
              <select id="resolution">
              </select>
            </p>
            <p>
              <label for="datachannel">datachannel:</label>
              <input id='datachannel' name="datachannel" type="checkbox" value="0">
            </p>
            <button onclick="start()">开始(start)</button>
            <button onclick="stop()">停止(stop)</button>

            <p>
              <label for="msgsend">msgsend:</label>
              <input type="text" id='msgsend' value="hello word !">
            </p>
            <p>
              <label for="msgrecv">msgrecv:</label>
              <input type="text" id='msgrecv' disabled>
            </p>
            <button onclick="send()">发送(send by datachannel)</button>
            <button onclick="close()">关闭(close datachannel)</button>
            

           
            
        </div>
    </div>

    <script>
      var player = null
      var recvOnly = true
      var resArr = []

      var ishttps = 'https:' == document.location.protocol ? true : false
      var isLocal = "file:" == document.location.protocol ? true : false
      var url = document.location.protocol+"//"+window.location.host+"/index/api/webrtc?app=live&stream=test&type=play"
      

      if(!ishttps && !isLocal){
        alert('本demo需要在https的网站访问 ,如果你要推流的话(this demo must access in site of https if you want push stream)')
      }

      if(isLocal){
        url = "http://127.0.0.1"+"/index/api/webrtc?app=live&stream=test&type=play"
      }
      document.getElementById('streamUrl').value = url
      document.getElementsByName("method").forEach((el,idx)=>{
        el.onclick=function(e){
          let url = new URL(document.getElementById('streamUrl').value);
          url.searchParams.set("type",el.value)
          document.getElementById('streamUrl').value = url.toString()
          
          if(el.value == "play"){
            recvOnly = true;
          }else if(el.value == "echo"){ 
            recvOnly = false;
          }else{
            recvOnly = false;
          }
        };
      });

      ZLMRTCClient.GetAllScanResolution().forEach((r,i)=>{
          opt = document.createElement('option');
          opt.text = r.label +"("+r.width+"x"+r.height+")";
          opt.value = r;
          document.getElementById("resolution").add(opt,null)

          //console.log(opt.text.match(/\d+/g))

        
      })
      function start_play(){
        let elr = document.getElementById("resolution");
        let res = elr.options[elr.selectedIndex].text.match(/\d+/g);
        let h = parseInt(res.pop());
        let w = parseInt(res.pop());

        player = new ZLMRTCClient.Endpoint(
                {
                    element: document.getElementById('video'),// video 标签
                    debug: true,// 是否打印日志
                    zlmsdpUrl:document.getElementById('streamUrl').value,//流地址
                    simulcast:document.getElementById('simulcast').checked,
                    useCamera:document.getElementById('useCamera').checked,
                    audioEnable:document.getElementById('audioEnable').checked,
                    videoEnable:document.getElementById('videoEnable').checked,
                    recvOnly:recvOnly,
                    resolution:{w:w,h:h},
                    usedatachannel:document.getElementById('datachannel').checked,
                }
            );
    
            player.on(ZLMRTCClient.Events.WEBRTC_ICE_CANDIDATE_ERROR,function(e)
            {// ICE 协商出错
                console.log('ICE 协商出错')
            });
    
            player.on(ZLMRTCClient.Events.WEBRTC_ON_REMOTE_STREAMS,function(e)
            {//获取到了远端流，可以播放
                console.log('播放成功',e.streams)
            });
    
            player.on(ZLMRTCClient.Events.WEBRTC_OFFER_ANWSER_EXCHANGE_FAILED,function(e)
            {// offer anwser 交换失败
                console.log('offer anwser 交换失败',e)
                stop();
            });
    
            player.on(ZLMRTCClient.Events.WEBRTC_ON_LOCAL_STREAM,function(s)
            {// 获取到了本地流
    
              document.getElementById('selfVideo').srcObject=s;
              document.getElementById('selfVideo').muted = true;
              
                //console.log('offer anwser 交换失败',e)
            });

            player.on(ZLMRTCClient.Events.CAPTURE_STREAM_FAILED,function(s)
            {// 获取本地流失败
    
              console.log('获取本地流失败')
            });

            player.on(ZLMRTCClient.Events.WEBRTC_ON_CONNECTION_STATE_CHANGE,function(state)
            {// RTC 状态变化 ,详情参考 https://developer.mozilla.org/en-US/docs/Web/API/RTCPeerConnection/connectionState
              console.log('当前状态==>',state)
            });

            player.on(ZLMRTCClient.Events.WEBRTC_ON_DATA_CHANNEL_OPEN,function(event)
            {
              console.log('rtc datachannel 打开 :',event)
            });

            player.on(ZLMRTCClient.Events.WEBRTC_ON_DATA_CHANNEL_MSG,function(event)
            {
              console.log('rtc datachannel 消息 :',event.data)
              document.getElementById('msgrecv').value = event.data
            });
            player.on(ZLMRTCClient.Events.WEBRTC_ON_DATA_CHANNEL_ERR,function(event)
            {
              console.log('rtc datachannel 错误 :',event)
            });
            player.on(ZLMRTCClient.Events.WEBRTC_ON_DATA_CHANNEL_CLOSE,function(event)
            {
              console.log('rtc datachannel 关闭 :',event)
            });
      }

      function start()
      {
        stop();
        let elr = document.getElementById("resolution");
        let res = elr.options[elr.selectedIndex].text.match(/\d+/g);
        let h = parseInt(res.pop());
        let w = parseInt(res.pop());

        if(document.getElementById('useCamera').checked && !recvOnly)
        {
          ZLMRTCClient.isSupportResolution(w,h).then(e=>{
            start_play()
          }).catch(e=>{
           alert("not support resolution")
          });
        }else{
          start_play()
        }
      }

      function stop()
      {
          if(player)
          {
            player.close();
            player = null;
            var remote = document.getElementById('video');
            if(remote)
            {
                remote.srcObject = null;
                remote.load();
            }
            var local = document.getElementById('selfVideo');
            local.srcObject = null;
            local.load();
          }
      }

      function send(){
        if(player){
          //send msg refernece https://developer.mozilla.org/en-US/docs/Web/API/RTCDataChannel/send
          player.sendMsg(document.getElementById('msgsend').value)
        }
      }

      function close(){
        if(player){
          player.closeDataChannel()
        }
      }


      function on_click_to_play(app, stream) {
        console.log(`on_click_to_play: ${app}/${stream}`);
        var url = `${document.location.protocol}//${window.location.host}/index/api/webrtc?app=${app}&stream=${stream}&type=play`;
        document.getElementById('streamUrl').value = url;
        start();
      }
      function clearStreamList() {
        let content = document.getElementById("olstreamlist");
          while (content.hasChildNodes()) {
            content.removeChild(content.firstChild);
          }
      }
      function fillStreamList(json) {
          clearStreamList();
          if (json.code != 0) {
            return;
          }
          let ss = {};
          for (let o of json.data) {
            if (ss[o.app]) {
              ss[o.app].add(o.stream);
            } else {
              let set = new Set();
              set.add(o.steram);
              ss[o.app] = set;
            }
          }

          for (let o in ss) {
            let app = o;
            for (let s of ss[o]) {
              if (s) {
                //console.log(app, s);
                let content = document.getElementById("olstreamlist");
                let child = `<li app="${app}"  stream="${s}" onmouseover="this.style.color='blue';" onclick="on_click_to_play('${app}', '${s}')">${app}/${s}</li>`;
                content.insertAdjacentHTML("beforeend", child);
              }
            }
          }
      }
      async function getData(url) {
        const response = await fetch(url, {
            method: 'GET'
        });
        const data = await response.json();
        //console.log(data);
        return data;
      }
      function get_media_list() {
        let url = document.location.protocol+"//"+window.location.host+"/index/api/getMediaList?secret=035c73f7-bb6b-4889-a715-d9eb2d1925cc";
        let json = getData(url);
        json.then((json)=> fillStreamList(json));
      }
      setInterval(() => {
       get_media_list(); 
      }, 1000);

    </script>
    
  </body>

  <script>
    
  </script>

</html>
